Fig. 2: Experiments of transporting microparticles to specified locations, along with an analysis of failure causes.

a Four microparticles were targeted for transport; however, the process failed for the O1 and O2 microparticle due to interference from overlapping light patterns (supplementary Movie S1). b A schematic depicts the intersection and overlap of light patterns with two green rings representing the light patterns. The inner and outer radii of the rings are denoted as rin and rout, respectively, with T representing the thickness of the rings. The distance between C1 and C2. is labeled as d. Ls, which represents the available space used for microparticle manipulation, varies depending on the distance between the centers of the two ring patterns. Ls indicates the degree of overlap. c The temporal variation of Ls for the O1 and O2 microparticle is presented. The inset shows the moment at 21 seconds when the two microparticles escaped the confinement of the ring light patterns, along with a schematic diagram illustrating the upward forces acting on the particles at that time